Leaving the key on, measure the 12.5 volts (DC) or higher from the R (red) wires, two each on the starter relay. There is also a 30 amp fuse within the starter relay. I would double check that. The starter relay is under the seat next to the battery.- - - No voltage would indicate the 30 main main fuse/starter relay has failed.

The basic idea is that 'ground' is all over the bike. You need to find the positive voltage potential at other places to ensure that the circuit is completed. You can't say that everything was checked and found to be OK. If it was, then you should have power.